Shaper for cuttlefish molds.



H. ORKIN.

SHAPER FOR GUTTLEFISH MOLDS.

APPLICATION FILED JAN. 6, 191 3.

Patented Mar. 24, 1914.

HARRY ORKIN, OF CHELSEA, MASSACHUSETTS.

SHAPER FOR CUTTLEFISI-I MO'LDS.

Specification of Letters Patent.

Patented Mar. 24, 1914.

Application filed January 6, 1913. Serial No. 740,897.

To all whom it may concern:

Be it known that I, HARRY ORKIN, citizen of the United States of America, and a resident of Chelsea, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Shapers for Cuttlefish Molds, of which the following is a specification.

This invention relates to devices for shaping molds to be used by manufacturing jewelers in the construction of finger rings and the like, and it has for its object the production of a device adapted to shape the ends of the various sections of a mold so that they will accurately fit each other. These molds are preferably made of cuttle-bone and may be formed readily to the required shape by subjecting them to a suitably formed abrading surface. It is preferable that each of the side members of the mold should be provided with a semicylindrical projection adapted to fit within the ring pattern when the two side members are forced together. When this has been accomplished the cap section is placed thereon and in order to form a perfect mold it is essential that the cap be provided with a semicylindrical depression accurately fitting the semicylindrical projection on the side members.

To form these semicylindrical projections and depressions so that they will accurately fit each other is the purpose of the present invention which consists primarily of a member composed of an abrading substance and having formed therein semicylindrical depressions of different diameters and corresponding semicylindrical projections of substantially the same diameters.

The invention further consists in certain novel features of construction and arrangement of parts which will be readily understood by reference to the description of the drawings and to the claims hereinafter given. 7

Of the drawings: Figure 1 represents a perspective of a portion of a shaper embodying the features of the present invention. Fig. 2 represents a plan of the shaper drawn to a reduced scale. Fig. 3 represents a perspective of the two side members of the mold, and Fig. 4 represents a perspective of the cap portion of the mold.

Similar characters designate like parts throughout the drawings.

In the drawings, 10 represents a member formed of artificial stone and provided with a plurality of semicylindrical depressions 11, each having a different diameter. This member 10 isalso provided with corresponding semicylindrical ribs 12, these ribs also being of different diameters. Each depression 11 preferably is of slightly greater diameter than its corresponding rib 12. Extending radially from each depression 11 are the alined faces 13 while similar alined faces 14 are formed in the member 10 radial to the projecting ribs 12.

On either side ofeach of the depressions 11 at the termination of each face 13 is an inclinedwall 15 formed upon a projecting flange 16, the side walls of the flanges 16 between the various depressions 11 being .oppo-sitely inclined as clearlyshown in Fig. 1 of the drawings. The opposite face of the member 10 is provided with a plurality of projecting flanges 17 having oppositely inclined walls 18 as indicated in Fig. 1 of the drawings. These flanges extend beyond the ribs 12 so as to form a support for the memberdlO when the depressions 11 are being use It is obvious that inasmuch as the entire member 10 is formed of artificial stone all of the surfaces thereof will be sufficiently roughened to permit an abrading action upon any article reciprocated in contact therewith. The object of the member 10 is to shape the various sections 19, 20, and 21, of molds to be used in casting metal finger rings. These molds are preferably of some soft material, such as cuttle-bone. Two pieces of cuttle-bone of any desired shape may be taken and two side faces flattened by reciprocating it in contact with a flat surface such as the end 22 of the member 10, and when the members have been flattened sufficiently they are placed face to face, and then the corresponding ends thereof are reciprocated lengthwise of one of the depressions 11' until they assume the shape indicated at 23 in Fig. 3 of the drawings. This curved end 23 of the side members 19 and 20 of the mold is of such a diameter as to accurately fit within a pattern of a finger ring a matrix of which it is desired to form within the mold 19, 20, and 21. The capped section 21 of the mold is formed by reciprocating a piece of cuttle-bone lengthwise of the corresponding projecting rib 12 until the semicylindrical depression 2 1 has been formed in the capped section 21. The diameter of this depression 24 is slightly less than the projection 23 upon the side members l9 and 20. The capped section 21 is then placed over the end 23 of the side members 19 and 20 and isreciprocated thereon until the rubbing contact has caused sufficient abrading thereof to secure an accurate fit with the radial faces 25 of the side sections 19 and 20, in the same plane with the radial faces 26 of the capped section 21. When this has been accomplished a pattern of a finger ring is placed over one of the projections 23 against the inner face of one of the side members 19 and 20 with the larger end having a design thereon extending beyond the end of said projection 23. The other side member is then placed against the pattern and by compression the pattern is forced into the side faces of the cuttlebone sections 19 and 20. The cap 21 is then placed in position upon the larger end of the side members 19 and 20 and forced downwardly so as to form a matrix of the design portion ofthe ring in the semicylindrical face of the depression 2 1. The pattern is then removed and a passage on the inner face of the side members 19 and 20 is formed to permit the gold or other metal to be poured into the completed mold and cast the ring in the usual manner.

Heretofore, in the use of cuttle-bone for the formation of molds of this character, there has been extreme difficulty in properly shaping the various sections of the mold, much time being occupied in securing the required shape, thereby increasing the expense of manufacture.

' By the use of the device herein described the cuttle-bone sections of the mold may be quickly shaped by slight reciprocation along the a'brading surfaces of the member 10. By using this shaper much time 18 saved to the manufacturer in the construction of the molds over any of the processes heretofore in use.

It is believed that the many advantages of the invention will be fully apparent from the foregoing description.

Having thus described my invention, I claim:

1. As a new article of manufacture, a member having abrading surfaces composed of a plurality of semi-cylindrical ribs of different diameters and flat surfaces radiating from said ribs in alinement with the centers of said ribs.

2. As a new article of manufacture, a member having an abrading surface composed of a semicylindrical rib and a semicylindrical depression of substantially the same diameter, said rib and depression each having radiating alined flat surfaces eX- tending therefrom.

3. As a new article of manufacture, a member having a flat abrading surface provided with a pair of projecting flanges having oppositely inclined walls and a semieylindrical rib projecting from said flat surface intermediate said flanges.

1. As a new article of manufacture, a member having a flat abrading surface provided with a plurality of projecting flanges with inclined walls and a plurality of semicylindrical ribs of different diameters projecting from said flat surface and a plurality of semicylindrical depressions of different diameter positioned intermediate of difierent pairs of flanges,

Signed by me at l Post Oflice Sq., Boston, Mass, this 3rd day of January, 1918.

HARRY ORKIN.

Vitnesses SAMUEL ORKIN, VVAL'rnn E. LOMBARD.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, 

